关于植株内含糖量与病害的关系,曾有人认为在某些病害中,含糖量高会增加感病性。近来还有人提出了“高糖病害和低糖病害”的观点,即寄主体内含糖量低时,感病性强、发病重的属低糖病害,寄主体内含糖量高时,感病性强、发病重的属高糖病害。并且对蕃茄早疫病和小麦锈病等病害作了研究, Concerning the relationship between plant sugar content and disease, some people think that in some diseases, high sugar content will increase the susceptibility. Recently, some people also put forward the suggestion of “high sugar and low sugar diseases”. In other words, when the content of sugar in the host is low, the susceptible and severe diseases are low sugar diseases. When the content of sugar in the host is high, the susceptibility Strong, severe disease is a high sugar disease. And tomato early blight and wheat rust and other diseases were studied,